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NCHRP Report 635: Acoustic Beamforming: Mapping Sources of Truck Noise (2009)
National Cooperative Highway Research Program (NCHRP)

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Donavan, Paul R, Gurovich, Yuriy A, Plotkin, Kenneth J, Robinson, Daniel H, Blake, William K, Transportation Research Board. "Abbreviations used without definitions in TRB publications." NCHRP Report 635: Acoustic Beamforming: Mapping Sources of Truck Noise. Washington, DC: The National Academies Press, 2009.

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Page
80
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Page
80
Front Matter (R1-R9)
Summary (1-5)
1.2 Heavy Truck Noise Sources (6-6)
1.3 Source Identification Methods (7-8)
1.4 Objective and Scope of Research (9-9)
Task 5. Execute Testing Plan (10-10)
Task 9. Submit Final Report (11-11)
3.2.1 Noise Mapping Technique Development (12-12)
3.2.2 Microphone Array Design (13-13)
3.2.3 Balance Between Array Aperture and Spherical Spreading Loss (14-16)
3.2.4 Design Conclusions (17-18)
3.3.3 Preliminary Testing (19-19)
3.4.1 Low-Speed Tests (20-21)
3.4.2 High-Speed Tests (22-22)
3.4.3 Passby and Intensity Measurements (23-30)
3.5.1 Beamformer Calibrations with Spherical Source (31-33)
3.5.2 Benchmark Measurements of Spherical Source on Moving Truck with Competing Truck Noise (34-34)
3.5.3 Benchmark Parallel Array-Based and Acoustic Intensity Measurements for Stationary Trucks (35-40)
3.5.4.1 Analysis Technique for Low- and High-Speed Track Passbys (41-43)
3.5.4.2 Passby Evaluations of the 5900i Truck: Localization of Engine Compartment and Tire Noise (44-45)
3.5.4.3 Passby Evaluations of the 9200i Truck: Localization of Engine Compartment and Exhaust Noise (46-47)
3.5.4.4 Evaluations of the Truck Acoustic Source Level During Passby as a Function of Vertical Elevation (48-52)
3.6.2 Data Post-Processing Algorithm Modifications (53-53)
3.6.4 Roadside Measurement Setup (54-54)
3.7.2 Image Results of the Vehicle Passbys (55-67)
3.7.3 Example Model of Truck Sources for Simulating Noise Propagation Results of the Vehicle Passbys (68-70)
4.2 Recommendations (71-72)
References (73-74)
Appendix A - Array Microphone Coordinates (75-75)
Appendix B - Vertical Distributions of Noise Sources for Heavy Trucks (76-77)
Appendix C - Glossary of Special Terms (78-79)
Abbreviations used without definitions in TRB publications (80-80)

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Abbreviations and acronyms used without definitions in TRB publications: AAAE American Association of Airport Executives AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI­NA Airports Council International­North America ACRP Airport Cooperative Research Program ADA Americans with Disabilities Act APTA American Public Transportation Association ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials ATA Air Transport Association ATA American Trucking Associations CTAA Community Transportation Association of America CTBSSP Commercial Truck and Bus Safety Synthesis Program DHS Department of Homeland Security DOE Department of Energy EPA Environmental Protection Agency FAA Federal Aviation Administration FHWA Federal Highway Administration FMCSA Federal Motor Carrier Safety Administration FRA Federal Railroad Administration FTA Federal Transit Administration IEEE Institute of Electrical and Electronics Engineers ISTEA Intermodal Surface Transportation Efficiency Act of 1991 ITE Institute of Transportation Engineers NASA National Aeronautics and Space Administration NASAO National Association of State Aviation Officials NCFRP National Cooperative Freight Research Program NCHRP National Cooperative Highway Research Program NHTSA National Highway Traffic Safety Administration NTSB National Transportation Safety Board SAE Society of Automotive Engineers SAFETEA-LU Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) TCRP Transit Cooperative Research Program TEA-21 Transportation Equity Act for the 21st Century (1998) TRB Transportation Research Board TSA Transportation Security Administration U.S.DOT United States Department of Transportation